Why is the wrong frame is imported in to LooksBuilder app?

For Premiere Pro and Final Cut Pro to generate a new preview frame for Magic Bullet Looks, the clip will need to be unrendered prior to clicking the Edit Look.. button to open the LooksBuilder app, this is because Premiere Pro and Final Cut Pro are unable to create a new preview frame for Looks when the clip is rendered. When rendered, Premiere Pro and Final Cut Pro will call upon a cached (rendered) frame to import.

In the example provided below, Magic Bullet Looks is applied in PPro and the proper frame will only be imported in to the LooksBuilder app for the unrendered clip (red line above clip).